where can i check my 2nd hand imei number to see if it is stolen?

You mean you have a 2nd hand phone and you want to see if it's blocked? Put in a sim. If it works, it works.
DO NOT give your IMEI to any 3rd party website that claim to check!
Ask your network to find out.

You mean you have a 2nd hand phone and you want to see if it's blocked? Put in a sim. If it works, it works.
DO NOT give your IMEI to any 3rd party website that claim to check!
Ask your network to find out.